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carbon-lang/toolchain/check/testdata/function/call/fail_param_count.carbon
T
Jon Ross-PerkinsandRichard Smith 76ed3c73cb Promote FunctionType to a standard instruction. (#3931) 
This removes the builtin FunctionType, replacing it with a FunctionType
instruction. The constant for a FunctionDecl is now a StructValue with
type of FunctionType.

Note this means a function declaration produces _both_ a type, and a
value of the type. This has some consequences in terms of circularity,
and makes the importing of function declarations a little more complex.

It'll get particularly peculiar for imports because of the behavior of
the reference, but that's a known issue due to other things such as
`alias`. The impact will hopefully be contained to
ResolvePrevInstForMerge (and ImportRefs).

To note a small formatting change in diagnostics:

```
-  // CHECK:STDERR: fail_member_lookup.carbon:[[@LINE+4]]:3: ERROR: Value of type `<associated <function> in Interface>` is not callable.
+  // CHECK:STDERR: fail_member_lookup.carbon:[[@LINE+4]]:3: ERROR: Value of type `<associated F in Interface>` is not callable.

-  // CHECK:STDERR: fail_todo_facet_lookup.carbon:[[@LINE+4]]:3: ERROR: Value of type `<associated <function> in Interface>` is not callable.
+  // CHECK:STDERR: fail_todo_facet_lookup.carbon:[[@LINE+4]]:3: ERROR: Value of type `<associated F in Interface>` is not callable.
```

---------

Co-authored-by: Richard Smith <richard@metafoo.co.uk>
2024-05-03 15:18:04 +00:00

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// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
// AUTOUPDATE
fn Run0() {}
fn Run1(a: i32) {}
fn Run2(a: i32, b: i32) {}
fn Main() {
// CHECK:STDERR: fail_param_count.carbon:[[@LINE+7]]:3: ERROR: 1 argument(s) passed to function expecting 0 argument(s).
// CHECK:STDERR: Run0(1);
// CHECK:STDERR: ^~~~~
// CHECK:STDERR: fail_param_count.carbon:[[@LINE-8]]:1: Calling function declared here.
// CHECK:STDERR: fn Run0() {}
// CHECK:STDERR: ^~~~~~~~~~~
// CHECK:STDERR:
Run0(1);
// CHECK:STDERR: fail_param_count.carbon:[[@LINE+7]]:3: ERROR: 2 argument(s) passed to function expecting 0 argument(s).
// CHECK:STDERR: Run0(0, 1);
// CHECK:STDERR: ^~~~~
// CHECK:STDERR: fail_param_count.carbon:[[@LINE-16]]:1: Calling function declared here.
// CHECK:STDERR: fn Run0() {}
// CHECK:STDERR: ^~~~~~~~~~~
// CHECK:STDERR:
Run0(0, 1);
// CHECK:STDERR: fail_param_count.carbon:[[@LINE+7]]:3: ERROR: 0 argument(s) passed to function expecting 1 argument(s).
// CHECK:STDERR: Run1();
// CHECK:STDERR: ^~~~~
// CHECK:STDERR: fail_param_count.carbon:[[@LINE-24]]:1: Calling function declared here.
// CHECK:STDERR: fn Run1(a: i32) {}
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~
// CHECK:STDERR:
Run1();
// CHECK:STDERR: fail_param_count.carbon:[[@LINE+7]]:3: ERROR: 2 argument(s) passed to function expecting 1 argument(s).
// CHECK:STDERR: Run1(0, 1);
// CHECK:STDERR: ^~~~~
// CHECK:STDERR: fail_param_count.carbon:[[@LINE-32]]:1: Calling function declared here.
// CHECK:STDERR: fn Run1(a: i32) {}
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~
// CHECK:STDERR:
Run1(0, 1);
// CHECK:STDERR: fail_param_count.carbon:[[@LINE+7]]:3: ERROR: 0 argument(s) passed to function expecting 2 argument(s).
// CHECK:STDERR: Run2();
// CHECK:STDERR: ^~~~~
// CHECK:STDERR: fail_param_count.carbon:[[@LINE-40]]:1: Calling function declared here.
// CHECK:STDERR: fn Run2(a: i32, b: i32) {}
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~
// CHECK:STDERR:
Run2();
// CHECK:STDERR: fail_param_count.carbon:[[@LINE+6]]:3: ERROR: 1 argument(s) passed to function expecting 2 argument(s).
// CHECK:STDERR: Run2(0);
// CHECK:STDERR: ^~~~~
// CHECK:STDERR: fail_param_count.carbon:[[@LINE-48]]:1: Calling function declared here.
// CHECK:STDERR: fn Run2(a: i32, b: i32) {}
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~
Run2(0);
}
// CHECK:STDOUT: --- fail_param_count.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Run0: type = fn_type @Run0 [template]
// CHECK:STDOUT: %.1: type = tuple_type () [template]
// CHECK:STDOUT: %struct.1: Run0 = struct_value () [template]
// CHECK:STDOUT: %Run1: type = fn_type @Run1 [template]
// CHECK:STDOUT: %struct.2: Run1 = struct_value () [template]
// CHECK:STDOUT: %Run2: type = fn_type @Run2 [template]
// CHECK:STDOUT: %struct.3: Run2 = struct_value () [template]
// CHECK:STDOUT: %Main: type = fn_type @Main [template]
// CHECK:STDOUT: %struct.4: Main = struct_value () [template]
// CHECK:STDOUT: %.2: i32 = int_literal 1 [template]
// CHECK:STDOUT: %.3: i32 = int_literal 0 [template]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [template] {
// CHECK:STDOUT: .Core = %Core
// CHECK:STDOUT: .Run0 = %Run0.decl
// CHECK:STDOUT: .Run1 = %Run1.decl
// CHECK:STDOUT: .Run2 = %Run2.decl
// CHECK:STDOUT: .Main = %Main.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core: <namespace> = namespace [template] {}
// CHECK:STDOUT: %Run0.decl: Run0 = fn_decl @Run0 [template = constants.%struct.1] {}
// CHECK:STDOUT: %Run1.decl: Run1 = fn_decl @Run1 [template = constants.%struct.2] {
// CHECK:STDOUT: %a.loc8_9.1: i32 = param a
// CHECK:STDOUT: @Run1.%a: i32 = bind_name a, %a.loc8_9.1
// CHECK:STDOUT: }
// CHECK:STDOUT: %Run2.decl: Run2 = fn_decl @Run2 [template = constants.%struct.3] {
// CHECK:STDOUT: %a.loc9_9.1: i32 = param a
// CHECK:STDOUT: @Run2.%a: i32 = bind_name a, %a.loc9_9.1
// CHECK:STDOUT: %b.loc9_17.1: i32 = param b
// CHECK:STDOUT: @Run2.%b: i32 = bind_name b, %b.loc9_17.1
// CHECK:STDOUT: }
// CHECK:STDOUT: %Main.decl: Main = fn_decl @Main [template = constants.%struct.4] {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Run0() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Run1(%a: i32) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Run2(%a: i32, %b: i32) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Main() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %Run0.ref.loc19: Run0 = name_ref Run0, file.%Run0.decl [template = constants.%struct.1]
// CHECK:STDOUT: %.loc19: i32 = int_literal 1 [template = constants.%.2]
// CHECK:STDOUT: %Run0.call.loc19: init () = call %Run0.ref.loc19(<invalid>) [template = <error>]
// CHECK:STDOUT: %Run0.ref.loc27: Run0 = name_ref Run0, file.%Run0.decl [template = constants.%struct.1]
// CHECK:STDOUT: %.loc27_8: i32 = int_literal 0 [template = constants.%.3]
// CHECK:STDOUT: %.loc27_11: i32 = int_literal 1 [template = constants.%.2]
// CHECK:STDOUT: %Run0.call.loc27: init () = call %Run0.ref.loc27(<invalid>) [template = <error>]
// CHECK:STDOUT: %Run1.ref.loc36: Run1 = name_ref Run1, file.%Run1.decl [template = constants.%struct.2]
// CHECK:STDOUT: %Run1.call.loc36: init () = call %Run1.ref.loc36(<invalid>) [template = <error>]
// CHECK:STDOUT: %Run1.ref.loc44: Run1 = name_ref Run1, file.%Run1.decl [template = constants.%struct.2]
// CHECK:STDOUT: %.loc44_8: i32 = int_literal 0 [template = constants.%.3]
// CHECK:STDOUT: %.loc44_11: i32 = int_literal 1 [template = constants.%.2]
// CHECK:STDOUT: %Run1.call.loc44: init () = call %Run1.ref.loc44(<invalid>) [template = <error>]
// CHECK:STDOUT: %Run2.ref.loc53: Run2 = name_ref Run2, file.%Run2.decl [template = constants.%struct.3]
// CHECK:STDOUT: %Run2.call.loc53: init () = call %Run2.ref.loc53(<invalid>) [template = <error>]
// CHECK:STDOUT: %Run2.ref.loc60: Run2 = name_ref Run2, file.%Run2.decl [template = constants.%struct.3]
// CHECK:STDOUT: %.loc60: i32 = int_literal 0 [template = constants.%.3]
// CHECK:STDOUT: %Run2.call.loc60: init () = call %Run2.ref.loc60(<invalid>) [template = <error>]
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
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